Electro–Magneto–Thermo-Mechanical Analysis of polymeric Smart Rotating Disk Reinforced WithMultiwalled Carbon Nanotubes with Nonlinear Behavior

Authors

1 Univercity of Kashan

2 KASHAN UNIVERCITY

Abstract

Nonlinear electro-magneto-thermo-mechanical analysis of a rotating disk made of piezoelectric polymeric material reinforced with multiwalled carbon nanotubes has been considered in this study. This material has viscoelastic behavior andthe elasticity modulusis calculated from Maxwell elasticity modulus inBurger’s viscoelastic model whichtime, stress and temperature dependent.The disk has been placed in an axisymetric distributed temperature and magnetic field and is subjected to an axial centrifugal body force. A non-homogeneous differential equation with variable coefficients is derived using stress-strain relation for plane-stress condition, strain-displacement relation, the equilibrium equation, charge equation of electrostatics and the Maxwell’s equation due to variation of the elasticity modulus with respect to stress and temperature.A numerical method in conjuction with a semi analytical solution has been developed to obtainelasticity modulus, displacement, stresses, strains and electric potentialdistributions.Applying magnetic field and electric potential reduced displacement and the deformation of thedisk can becontrolled by applying a suitableelectric potential and magnetic field. An electric potential distribution due to piezoelectric property of the polymeric material will be distributed throughout the disk.

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Main Subjects

References

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Journal of Solid and Fluid Mechanics
Volume 6, Issue 2
July and August 2016
Pages 97-108

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